Home / 56,356.49-84,541.12-18,919.17

Finding the Fourth Proportional to 56,356.49, 84,541.12 and 18,919.17

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Solution

The fourth proportional to 56,356.49, 84,541.12 and 18,919.17 is: 28,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.49 : 84,541.12 = 18,919.17 : x
  2. Step 2: Convert to fraction form
    56,356.49/84,541.12 = 18,919.17/x
  3. Step 3: Cross multiply
    56,356.49x = 84,541.12 × 18,919.17
  4. Step 4: Simplify right side
    56,356.49x = 1,599,447,773.97
  5. Step 5: Solve for x
    x = 1,599,447,773.97/56,356.49
  6. Step 6: Final answer
    x = 28,380.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.